US3195960A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Material handling systems
Assignee: Individual
•
Filing: 1963-07-23
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Granted: 1965-07-20
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Expires: 1983-07-23
Abstract
No abstract record available.
Inventors
- 👤 Trythall William John Courtney
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 17:18
CPC Classifications
B; B65; B65G; B65G53/00; B65G53/04; B65G53/06; B65G53/10; B65G53/12; B65G53/34; B65G53/52; B65G53/56
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
227 words
A MATERIAL HANDLING SYSTEM COMPRISING A MATERIALSUPPLY VESSEL HAVING A CLOSEABLE OPENING THROUGH WHICH THE SUPPLY VESSEL CAN BE FILLED WITH MATERIAL, AND A FURTHER OPENING THROUGH WHICH SAID MATERIAL CAN BE EXPELLED BY MEANS OF COMPRESSED AIR WHEN SAID CLOSEABLE OPENING IS SHUT, A COMPRESSED AIR STORAGE RESERVOIR EXTENDING AROUND THE MATERIAL-SUPPLY VESSEL, AN AIR INLET CONNECTED TO THE COMPRESSED AIR RESERVOIR WHEREBY COMPRESSED AIR CAN BE SUPPLIED TO AND STORED IN THE AIR RESERVOIR, SAID AIR RESERVOIR BEING OF A SIZE SUFFICIENT TO RETAIN A VOLUME OF AIR WHICH CAN EMPTY THE FILLED MATERIAL FROM THE SUPPLY VESSEL, AND AN AIR FLOW CONNECTION THROUGH WHICH COMPRESSED AIR CAN FLOW FROM THE COMPRESSED AIR RESERVOIR TO THE SUPPLY VESSEL, SAID AIR FLOW CONNECTION COMPRISING A VOLUME CONTROL VALVE, THE ARRANGEMENT BEING SUCH THAT THE VALVE CONTROLLED AIR FLOW CONNECTION CAN BE CLOSED TO PERMIT THE COMPRESSED AIR RESERVOIR TO BE CHARGED WITH COMPRESSED AIR THROUGH THE AIR INLET CONNECTION WHILST THE SUPPLY VESSEL HAS SAID CLOSEABLE OPENING OPEN TO RECEIVE A CHARGE OF MATERIAL, AND SUCH THAT WHEN THE SUPPLY VESSEL HAS BEEN CHARGED WITH MATERIAL AND SAID CLOSEABLE OPENING HAS BEEN SHUT THE VALVE CONTROLLED FLOW CONNECTION CAN BE OPENED TO PERMIT THE COMPRESSED AIR IN THE COMPRESSED AIR RESERVOIR TO FLOW INTO THE SUPPLY VESSEL TO DISCHARGE THE MATERIAL THEREIN THROUGH SAID FURTHER OPENING.
Claim 2
Dependent Claim
227 words
A MATERIAL HANDLING SYSTEM COMPRISING A MATERIALSUPPLY VESSEL HAVING A CLOSEABLE OPENING THROUGH WHICH THE SUPPLY VESSEL CAN BE FILLED WITH MATERIAL, AND A FURTHER OPENING THROUGH WHICH SAID MATERIAL CAN BE EXPELLED BY MEANS OF COMPRESSED AIR WHEN SAID CLOSEABLE OPENING IS SHUT, A COMPRESSED AIR STORAGE RESERVOIR EXTENDING AROUND THE MATERIAL-SUPPLY VESSEL, AN AIR INLET CONNECTED TO THE COMPRESSED AIR RESERVOIR WHEREBY COMPRESSED AIR CAN BE SUPPLIED TO AND STORED IN THE AIR RESERVOIR, SAID AIR RESERVOIR BEING OF A SIZE SUFFICIENT TO RETAIN A VOLUME OF AIR WHICH CAN EMPTY THE FILLED MATERIAL FROM THE SUPPLY VESSEL, AND AN AIR FLOW CONNECTION THROUGH WHICH COMPRESSED AIR CAN FLOW FROM THE COMPRESSED AIR RESERVOIR TO THE SUPPLY VESSEL, SAID AIR FLOW CONNECTION COMPRISING A VOLUME CONTROL VALVE, THE ARRANGEMENT BEING SUCH THAT THE VALVE CONTROLLED AIR FLOW CONNECTION CAN BE CLOSED TO PERMIT THE COMPRESSED AIR RESERVOIR TO BE CHARGED WITH COMPRESSED AIR THROUGH THE AIR INLET CONNECTION WHILST THE SUPPLY VESSEL HAS SAID CLOSEABLE OPENING OPEN TO RECEIVE A CHARGE OF MATERIAL, AND SUCH THAT WHEN THE SUPPLY VESSEL HAS BEEN CHARGED WITH MATERIAL AND SAID CLOSEABLE OPENING HAS BEEN SHUT THE VALVE CONTROLLED FLOW CONNECTION CAN BE OPENED TO PERMIT THE COMPRESSED AIR IN THE COMPRESSED AIR RESERVOIR TO FLOW INTO THE SUPPLY VESSEL TO DISCHARGE THE MATERIAL THEREIN THROUGH SAID FURTHER OPENING.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-07-19 | 1969-01-18 | 1969-07-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-07-19 | 1973-01-18 | 1973-07-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-07-19 | 1977-01-18 | 1977-07-20 | $7700.00 | Window Closed / Lapsed |